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Resources for implementing higher-kinded types?

I’m working on a language and I would like to implement polymorphism over type constructors (for functor, applicative, monad, etc.) but I’m uncertain how to proceed.

Can anyone recommend tutorial-style resources or sample implementations of this? I’ve read that higher-order unification is involved, and that inference is undecidable without certain restrictions. Is that accurate? Would it be difficult to retrofit a (more or less) standard implementation of Hindley–Milner?

By Jon Purdy at 2016-11-09 05:04 | LtU Forum | 3 comments | other blogs | 8339 reads